基于环境监管平台的脱硫效率双膜模型及优化  

MODEL AND OPTIMIZATION OF DESULFURIZATION EFFICIENCY BY BIO-FILM THEORY BASED ON ENVIRONMENTAL MONITORING PLATFORM

作　　者：沈翔[1] 沈凯[1] 王林[1] 徐海涛[1] 周长城[1] 

机构地区：[1]东南大学能源与环境学院,南京210096

出　　处：《环境工程》2016年第3期65-69,75,共6页Environmental Engineering

摘　　要：针对内蒙古自治区火力发电厂烟气脱硫装置运行现状,结合内蒙古环保厅工况在线平台和总量核算需求,以双膜理论为基础模拟脱硫喷淋塔内部的化学反应及相际传质过程,建立一个包含所有含硫组分浓度及传质速率的数学模型。得到的常系数微分方程用Runge-Kutta法求解。为适应环境监管平台的需要,对模型进行优化,得到一个脱硫效率模型。将模型预测结果与在线监测数据进行比较,误差分析表明模型具有较高的预测能力,且对不同的机组具有通用性。Considering the power plants ＇operating situation in Inner Mongolia Autonomous Region and demand of local environmental protection department for on-line monitoring platform and total pollutant accounting,a mathematical model was built,which included both sulfur element contents and chemical reaction rates of compounds. Chemical reactions and interphase mass transfer of the spray scrubber was based on bio-film theory. The ordinary differential equations of the model was solved by Runge-Kutta method. A desulfurization efficiency model could be obtained by optimization of the original model in order to satisfy the demand of environmental monitoring platform. Comparison between calculating results of the model and on-line monitoring data demonstrated that the model data correlated well with the real data and the model could be applied to different units.

关 键 词：双膜理论 喷淋塔 脱硫效率 数值模拟 环境监管平台 

分 类 号：X773[环境科学与工程—环境工程]